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47. DEO<br />
DA LI VAZDUH IMA TEŽINU?<br />
Ima. Vazduh se sastoji od raznih gasova, uglavnom od azota (78%) i kiseonika (21%).<br />
Molekuli gasa imaju masu i mogu da se izmere. Jedan litar vazduha ima težinu od oko 1,2<br />
grama.<br />
24
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